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Fluid-assisted electrosurgical devices, methods and systems

a technology of electrosurgical devices and fluids, applied in the field of electrosurgical devices, systems and methods for use upon the tissues of the human body during surgery, can solve the problems of tissue desiccation, tissue sticking to the electrode, tissue perforation,

Active Publication Date: 2014-11-11
MEDTRONIC ADVANCED ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A dry tip electrosurgical device, such as a Bovie pencil, can cause the temperature of tissue being treated to rise significantly higher than 100° C., resulting in tissue desiccation, tissue sticking to the electrodes, tissue perforation, char formation and smoke generation.

Method used

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  • Fluid-assisted electrosurgical devices, methods and systems
  • Fluid-assisted electrosurgical devices, methods and systems
  • Fluid-assisted electrosurgical devices, methods and systems

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Embodiment Construction

[0034]Throughout the description, like reference numerals and letters indicate corresponding structure throughout the several views. Also, any particular feature(s) of a particular exemplary embodiment may be equally applied to any other exemplary embodiment(s) of this specification as suitable. In other words, features between the various exemplary embodiments described herein are interchangeable as suitable, and not exclusive. From the specification, it should be clear that any use of the terms “distal” and “proximal” are made in reference from the user of the device, and not the patient.

[0035]The invention provides devices, systems and methods for controlling tissue temperature at a tissue treatment site during an electrosurgical procedure. This is particularly useful for procedures where it is desirable to shrink, coagulate and seal tissue against blood loss, for example, by shrinking lumens of blood vessels (e.g., arteries, veins).

[0036]The invention will now be discussed with ...

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Abstract

The invention provides a bipolar electrosurgical device to treat tissue in a presence of radio frequency energy and a fluid provided from the device. In one embodiment, the device comprises a first electrode and a second electrode at the end of a malleable shaft assembly to be hand shapeable by a user of the device, and at least one fluid outlet. The malleable shaft assembly comprises a first shaft and a second shaft, a length of the first shaft and a length of the second shaft in an outer member comprising a polymer, and at least a portion of the first shaft and at least a portion of the second shaft being malleable.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This patent application claims priority under 35 U.S.C. §119(e) to U.S. provisional application Ser. No. 61 / 017,403, filed Dec. 28, 2007, the entire disclosure of which is incorporated by reference herein to the extent it is consistent.FIELD[0002]This invention relates generally to the field of medical devices, systems and methods for use upon a body during surgery. More particularly, the invention relates to electrosurgical devices, systems and methods for use upon tissues of a human body during surgery, particularly open surgery and minimally invasive surgery such as laparoscopic surgery.BACKGROUND[0003]A dry tip electrosurgical device, such as a Bovie pencil, can cause the temperature of tissue being treated to rise significantly higher than 100° C., resulting in tissue desiccation, tissue sticking to the electrodes, tissue perforation, char formation and smoke generation.[0004]More recently, fluid-assisted electrosurgical devices have...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A61B18/12A61B19/00A61B18/14A61B18/00A61B18/04
CPCA61B2218/002A61B2018/00136A61B2019/521A61B2019/5206A61B18/1402A61B2018/126A61B2018/1472A61B2090/309A61B2090/306
Inventor GREELEY, ROGER D.MILLER, STEVEN G.PODANY, VACLAV O.CONLEY, BRIAN M.GREENLAW, CHAD M.
Owner MEDTRONIC ADVANCED ENERGY